Improvement in lamp-burners



G. TRE'PTOW. LampBurner.

,316. Patented Oct. 7,1879.

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UNITED STATES PATENT OFFICE,

CARL TREPTOW, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN LAMP-BURNERS.

Specification forming part of Letters Patent No. 220,316, dated October7', 1879; application iiled August 2, 1878.

To all whom it may concern:

Be it known that I, CARL TnEProw, ofthe city of St. Louis and State ofMissouri, have invented an Improved Flame-Extinguisher and Ventilatorfor Goal-Oil Lamps, of which the following is a specification.

Under the present system the flame of coaloil lamps is generallyextinguished by lowering the wick and blowing into the chimney. Thisoperation is rather dangerous, for the reason that the old constructionof the lampburners does not contemplate a replacement of the oil whichis absorbed in the burner by a supply of atmospheric air, except throughthe wick-tube, whereby a heated atmosphere is gathered in thelampreservoir on top of the oil, creating a constant tendency towardexplosion, and this tendency is increased when, the flame is blowndownward toward the burner,

be it by human breath or atmospheric draft.

It is the aim of my invention. to diminish, and possibly avoid, thisdanger, for which purpose I introduce an extinguisher and a ventilatorof peculiar construction and arrangement, of .which the following is adescription, referen'ce being had to the annexed drawings, forming apart of this specification.

In the drawings, Figure l represents a side elevation, and Fig. 2 avertical section, of 1n y improved lamp-burner.

The extinguishingarrangement consists of three principal parts. A A area series of holes or openingskin the conica-l body of theburner-chamber, which surrounds the wick- "tube D.

B is a conical collar or sleeve, which is arranged to slide up and downupon the conical body of the burner. When lifted or slid up it fitstight enough upon the conical body to hermetically close the openings A,and thereby prevent any fresh supply of air to the flame, and thussecure the 'extinguislnnent of the fiame.

An air-tight bottom or partition, E, connects the wick-tube D with theoutside body of the burner, thereby entirely separating the interior ofthe reservoir from the flame, and preventing any escape of air from theformer to the latter. It is, therefore, apparent that the ame receivesits only supply ofair through the openings A, and cannot burn wheneverthese are covered by the collar B, but may be relighted as soon as thecollar drops.

Instead of the conical dropping collar, thc same might be provided withopenings corresponding with the openin gs A, and so arranged that byturning the sleeve B such openings might be covered or uncovered atpleasure.

The ventilator simply consists of an upwardly-extending andoutwardly-flaring open air-tube, (l, attached to or formed in the lowerpart of the burner-body, and connecting with an orilice in said burner.This tube and oriice are always kept open, so as to preserve the balanceand tension between the interior of the lamp and the atmosphere. Thesame may be made large enough to fill through the same the supply of oilinto the lamp.

The advantages of my invention are apparent. The reverberation of theflame and increase of temperature to an explosive degree, as Well as thecreation of a partial vacuum and evaporation of the oil within the lamp,are rendered impossible, and the lamp may safely be extinguished withoutdanger.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The conical body of the lamp-burner, provided with a series of holes,A, and the conical sleeve B, in combination with the air-tight bottom E,substantially as described.

2. The burner-body having therein the perforatons A, airtight bottom orpartition E, and open air-tube C, and provided with the conical sleeveB, substantially as and for the purpose set forth.

Witness my hand at St. Louis, Missouri, this 27th day of July, 1878.

CARL TREPTOW.

Witnesses:

EDMUND F. SCHREINER, HENRY A. SONTAG.

